Car-ventilator.



W. L WALSH.

CAR VBNTILMQR.

APPLIGATIQ'N FILED AUG. 3, 19H. Lggg Patented Mar. 18, i913.

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`within the body of the car for varying the UNITED sTATEs PATENT oEEIcE.

WILLIAM L. WALSH,

CAR-VENTILATOR.'

0F NEW YORK, N. Y..

To all Iw/iom it may concern: Be it known that I, WILLIAM L. WALSH, acitizen of the United States. and a resident of the city of New York,bo-rough of Manhattan, in the county and State of New York, haveinvented a new and Improved Car-Ventilator, of which the following is afull, clear, and exact description.

Among the principal objects which the present invent-ion has in Vieware: to provide a iiue or covered passage from which the air may bedrawn by the operation of the train and regulating devices to govern theextent of the communication between the interior of the car and saidpassage; 'to provide auxiliary boxes or chambers having communicationwith the interior of the car through controlled passages, the air insaid chambers being exhausted by the travel of the car; to provide meansoperable from disposition of t-he draft members of the ventilator; andto provide draft members for said flue and boxes extended beyond theinfluenceof the eddying currents formed b the movement of the car body.i

One embodiment of the present invention is disclosed in the struct-ureillustrated in the accompanying drawings, in which like characters ofreference denote corresponding parts. in all the viewsyand in which-Figure 1 is a perspective view of a railway car having a ventilatorconstructed and arranged in accordance with the present invention; Fig.2 is a longitudinal vert-ical section taken through the flue of saidventilator; Fig. 3 is a cross section of the top of the car showing theventilator as applied` thereto; and Fig. 4C is a `perspective viewshowin a modified form 0f the invention.

As s own in the accompanying drawings, the Ventilating windows 9, 9 openinto a passage or iiue formed by extending the lantern roof of the carover the main roof and filling the space between the lantern roof andmainl roof by means of solid boxing sides 10. By this arrangement aboxlike flue 11 'is formed, as shown best in Figs. 2 and 3 of thedrawings. Disposed at intervals, and preferably at the ends of the fluethus formed, are small hollow towers 12. A`s\ seen best in Fig. 2 of thedrawings the towers 12 are each covered by a hood 13. The hoods 13 havea solid cover and a cylindrical side wall 14. The side walls 14 areperforated to form the openings 15. 1

Specification of Letters Patent. l Patented M31-, 18, 1913 Applicationated August 31,1911. f

Serial No. 647,011.

The hoods 13 are fxedly mounted-at the.

upper end of vertically disposed shafts 16. Each of the shafts thereon.a bevel gear wheel 17. The towers l2 and covering hoods therefor arearranged. in pairs, preferably disposed at the' same position relativetothe length ofthe car. The shafts 16 at each end of the car areoperatively connected by a transmission shaft 18. The shaft 18 isprovided with a bevel vgear wheel 19 ixedly mounted at each end of thesaid shaft and in'mesh with the bevel gear wheel 17 on each of theshafts 16. One of the shafts 16' is elongated and is pr,ovided at thelower end thereofwith a hand wheel 20 whereby the train attendantmayrotate the shafts therewith.' In the 'operation of the invention thehoods 13 are so disposed with reference to the travel of the car thatthe openings 15 are turned from the direction of travel, thus forming asuction to draw from the flues 11 the air contained therein. Rarecationof the air wit-hin the flues 11 is prevented by `the flow of the airfrom the body ofthe carV into the said iues to through the towerstherefor.

be removed `therefrom 12 and the hoods 13 The quantity of air passingfrom the body of the car to the ues 11 is regulated by the adjustment ofthe sashes'21 to vary the opening of the windows. 9.

16 has rigidly mounted 'Y .I

16 and hoods 13 connected As seen by reference to Fig. 2 of thedraivings, the operation of the towers 12 at each .end of the flues 11ldraws the air from the said fiues in both directions and towardbothends thereof. In this manner a constant drain on `the dead or foul airof the car is exerted by the flues 11 and the towers 12 operatingtherein. v

In Fig. 4 of the drawings a modified form of the invention isshown,`wherein the towers 12 and hoods .13 are mounted uponboxes 22. Theboxes 22 are constructed of any suitable material, that preferred by mebeing sheet metal. The boxes are open toward the wind ows 9. The lengthof the said boxes 22 is' preferably such as to cover two or more of thewindows 9. As sh/ownin the drawings, it is preferred that'each of theboxes hould have a tower 12 centrally located t.

the towerabove the car roof more than a predetermined distance for fearof striking structures extended across the road bed, or

on. In constructing the towers 12 and hoods therefor care 1s exercisednot to raise the opening in tunnels through which trains have to pass.Due cure is also eXercised to remove the opening 15 of thv cover for anyof the counter-currents or eddies formed by lthe cal' structure on theair through which the saine is moving.

Having thus described my invention, what I claim asnew and desire tosecure by Letters Patent is In a car ventilator having a verticallyr4disposed tower, the sides of which are open in opposite directions; ahood having a. closed top, and a circular side wall pendent therefrom,said side Wall being provided 15 with an opening to register With theopenings in said tower; a shaft fixedly connected with, to support, saidhood, said sha-ft being disposed concentric with said tower and hood; ahund wheel mounted :1t un operat ing station; and transmission mechanismoperatively connecting said hand wheel and said shaft.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

IVILLIAM L. IVALSH.

